[Bug] 1 second overhead in `_getLinkStatus` in `PolygonLayer` on deck.gl 9.2.x

[kylebarron]

Description

Rendering a collection of PolygonLayers spends 1033ms in _getLinkStatus.

These are very simple polygons: every polygon is a closed triangle. This is not a large dataset. There are 20 layers with 1208 total triangles (polygons).

Here's the trace from Chrome profiling: polygon-layer-trace-deck.gl-raster-20260116T121703.json.gz

I've seen #7154 and #9822 but neither seem related to my issue.

Flavors

• Script tag
• React
• Python/Jupyter notebook
• MapboxOverlay
• GoogleMapsOverlay
• CARTO
• ArcGIS

Expected Behavior

This seems like not expected behavior to spend so long in shader linking.

Steps to Reproduce

Either

• look at the deployed example

• or build yourself:

  git clone https://github.com/developmentseed/deck.gl-raster
  cd deck.gl-raster
  git checkout b39f732e781bb0923cf9d10a8cb1c763998b6a56
  pnpm install
  pnpm build
  cd examples/land-cover
  pnpm dev 
  

Then click the "Show Debug Overlay" checkbox in the top left.

That's specifically on this branch that turns off rendering of my custom RasterLayer (via a Mesh layer) when the debug is turned on. This is to isolate that it's only the PolygonLayer that is leading to this slowdown.

Environment

• Framework version: deck.gl 9.2.6
• Browser: Chrome 143.0.7499.193
• OS: MacOS Tahoe 26.2 (25C56)

Logs

No response